Membership2 problems with updating and menu

Please move this to Membership2 Pro category. Your dropdown is not giving me the option for it!

We are having problems with the membership plugin not correctly displaying menu items to members all of a sudden. So I tried to upgrade to your new version of Membership2. I purchased it, then went through wpmu dashboard and clicked to install. It downloads it and says it installs but then nothing happens and the odl version is still there. If I try to install again it fails saying the directory of files is already there. Please help right away. This is a large site with many members unable to access content. Thanks!